US2061240A - Beer pump - Google Patents

Description

O. J. LEINS Nov.. 17, 1936.

BEER PUMP Filed Jan. l2, 1934 2 Sheets-Sheet 1 INV ENTOR.

Nov. 17, 1936. Q L EINS y 2,061,240

BEER PUMP Filed Jan. l2, 1934 2 Sheets-Sheet 2 INVENTOR.

Pyle-77M v l ATTORNEY) Patented Nov. 17, 1,936

PATENT @FFIQE BEER PUMP Oscar J. Leins, Milwaukee, Wis., assignor to Milwaukee Gas Specialty Company, Milwaukee, Wis., a corporation of Wisconsin VApplication January 12, 1934, Serial No. 706,347

7 Claims.

This invention relates to an improvement in beer dispensers or pumps of the type designed for use by the consumers in drawing or dispensing beer or similar beverages from kegs, barrels or similar containers.

The invention lends itself to embodiment in a structure employing either a hand pump or a cartridge or small drum of carbon dioxide, for placing a headV of pressure on the beverage.

One of the objects of the invention is to improve, simplify and compact the construction of a device of this character so as to render its production easy and economical with the consequence that the pump may be sold at a reasonable and popular price.

Another important object of the invention is to provide a pump or dispenser having the advantages Amentioned and which facilitates the drawing of the beer and tends to keep it in better condition than prior pumps of similar character.

Another object is to provide a device of this character which is of light weight, attractive in appearance, easily handled and operated and also easy and convenient to apply to or remove from a keg or barrel.

Other objects and advantages reside in certain novel features of the construction, arrangement and combination of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming a part of this specification, and in which:

Figure 1 is a view in side elevation showing one typel of beer pump in which the present invention may be embodied, parts being broken away and shown in section for the sake of illustration; 4

Figure 2 is a view partly in side elevation and partly in transverse vertical section further i1- lustrating the device shown in Figure 1;

Figure 3 is a sectional view taken on line 3--3 of Figure 2;

Figure 4 is a detail perspective view of the valve shown in Figure 3;

Figure 5 is a View partly in side elevation and partly in transverse vertical section illustrating a slight modification of the pump structure;

Figure 6 'is a fragmentary view in side elevation and partly in transverse vertical section villustrating another embodiment of the invention;`

Figure 7 isv a view partly in elevation and partly in vertical section, the section being taken on line 'I-1 of Figure 6; and

Figure 8 is a fragmentary perspective view showing the nger pieces provided on the valve casing to facilitate operation of the valve.

Referring to the drawings, and more particularly to Figures 1 and 2, the numeral I designates a keg or barrel of beer. The upper head 2 of the barrel is equipped with the usual bung bushing or tap fitting 3 with which any conventional or known tap 4 may interlock to secure in position a tap tube or draft tube 5, the tap, in addition to securing the tube 5 in place, performing its usual function of provi-ding the seals between the bung bushing and the tap and the tap tube.

In the form of the invention shown in Figure 2, the upper end of the tap tube 5 is connected to the inlet nipple 6 of a valve casing 1. A passage 8 is provided in the casing 'I and extends from the inlet nipple 6 to an outlet 9 which discharges through a faucet or nozzle structure I0. A rubber valve thimble II is disposed in the passage 8 and is so compressed as to block or seal this passage under the influence of its inherent elasticity. One end of the nipple I I is flanged as at I2 and such flange seats against an abutment or seat I3 provided on the casing. A retainingl nut I4 and Washer I5 secure the nipple in position.

A push rod or valve ro-d I6 is slidably tted in an opening I'I provided therefor in the retaining nut I4. On the outer end of this rod I 6 a knob I8 is provided. The inner end I9 of the rod I6 engages the closed end of the thimble and when the push rod I6 is pressed inwardly serves to stretch the thimble with the result that its periphery is disengaged from the wallA of the passage 8 to allow liquid or uid to flow from the tube 5 through the passage 8 to the outlet 9 and thence out through the faucet I0. As soon as pressure on the knob I8 is released, the elasticity of the valve thimble II returns it into sealing engagement with the wall of the passage-way and re-positions the valve rod thereby shutting o further flow. Portions 2| of the rod may be -attened or slabbed down to limit the extent to which the push rod I6 may be moved outwardly through the nut I4.

As shown to advantage in Figure 8, the valve casing 'I is preferably provided with finger pieces 22 which extend outwardly or laterally from the opposite sides thereof. They may be readily grasped with the finger while the knob I8 is pressed in with the thumb. Such manner of operating the valves precludes the possibility of the dis- 26. An outer pump tube 21 is mounted to slide up and down along the inner pump tube and for this purpose has a guide ring 28 lat its lower end slidably'tting on'the inner pump tube and is provided with an operating cap or knob A29 at its upper end which may be conveniently grasped A* when the outer pump tube is to be reciprocated.

The piston of the pump is stationary, being des-;

ignated generally at 30, and being supportedby the upper end of the inner pump tdbelll. v

As illustrated, the piston 30 lcomprises acupped leather washer 3l, the inner peripheralport'ion of which is clamped between metallic yves-hers 32 by means of a clamp screw 33 which is interthreaded as at 34 With a valve housing35. This valve `housing 35 is a press `i'l't in the upper -end of the inner pumptube .26 'vor may be secured `in such position vin .any desired Way. The .clamp screw 33 has an axial opening :35 therethrough. The valve .employed Aisjdesignated at .36 Aand, as shown; consists of a rubber cylinder .having one end open and secured -to the valve casing 35 by means ,of a valve insert 31 threaded tothe interior of the valve casing and .clamping the upper end of the valve cylinder `3:5 thereto. .The lower end of the valve cylinder `3.6 VVis closed as :indicated at .38. Aslotor slit 39 is provided .in the body .of the cylinder 36 and extends longitudinallythereof.

With this construction, when the knob 29 :is grasped :and pulled upwardly the pump tube 21 is carried with it. The space .above'the piston 30 and defined .by this piston, t-he knob .29 1and the .portion of .the pump .tubef21 .above the r`piston then become larger. .Due to therarefaction voccuring `.in this space, .air will ow past .the guide 4ring 2.8 .up through the .space betweenthe .tubes .25 and .21, past the .upwardly facing cuppedleather Washer 3l .of .the piston and into the .space above .the piston and defined thereby vand by the .knob.2.9 and the 4por-tion of the valve tube 21 above the piston. The tendency which the outer cylinder21 and its .knob or head ,29 have to draw air into the space therein above the ,piston 30 will not draw vin through theslit 39., .the action being such as to tend .to .close this slit. However, when the outer .cylinder 21 and its .head 29 are pushed downwardly the cupped-washer 3l, .of the piston will be expanded .into sealing engagement with the inner wall of the cylinder 21 `anldlthe .entrapped air will .be forced .through the opening 25 of .the clamping screw 23 through `the ,opening .of the valve insert .androut through 'the slit 39 into Ythe inner valve pump tube 26. .Y 4 Y A gas or air supply Vor transfer pipe 4B is provided forl transferring thel air 'from this inner valve tube 26 intothel interior of the 'keg at a point just above the beer 4line (when'the keg is full). lAs shown, this pipe "'40 "extends through an openingl provided inthe boss 25 andthen 'passes down through lthe, draft tube for tjap tube 5, the pipe line 4D having its lower end bent'as at 42 and extended through 'an openingI LIl? provided therefor in the draft tube. vlSolder or 'thelike 4designated at 44 and '45 may be employed for securing the ends yofthe-pipe di) in position. With this arrangement the air pressure `is built up over the surface of the beer and the disadvantage of :causing air to ilowthrough the beer Yis avoided;

The construction shown in lgnre 5 'is identical with that just described with l.the :exception that ing 1 contains the same type of valve mechanism fas that show-n in 'Figure 2.

' `In the form `of the inventionv shown in Figures 6 and '1 the hand `pump is eliminated and is replaced by acartridge :or drum of carbon dioxide. As there illustrated, the tapping tube has its upper yend interconnected with the inlet' nipple 5.1 .of -a casing 552. Communicating with the inlet nipple is a passage-way 53 which terminates in atfaueet or zdischa-rgespout 54 and which has a valve 55 made lup of .a rubber .thimble .H and the cooperable parts previously described. p In `this 1form of the invention vthe gas .transfer pi-pe is designated at 5.6 an-d, as before; extends through the tapping rod, its lower end .51 extending laterally through the Vrod and its upper end being .soldered as at 58 -to a ,ported partition provided in the `casing y5.72. casing -52is provided with a lchamber 59 to which .access may -be had -byremoving the plug B0. .A drum -or cartridge 6l lof .carbon xdioxide has its neck 62 threaded into av nipple 6.3 provided .on the L.

casing 52 4adjacent ithechamber `59, the neck Seating against -afgasket B4. For puncturing the seal- .ing cap .65 of the drum -or cartridge and metering the 4flow of gas, a 4needle valve 6E is provided and is carried by an operating stern vor .screw 61 indicated :at '58 and suitably packedkas indicated at .69. With `this construction, the serrated or knurled knob^10 of the valve .stem 51 4may be 'turned to cause the pointed end or the valve =6.6 to puncture the cap 65 and then the valve 56 may be kfurther .adjusted -t-o regulate the flow of gas pressure through the ,punctured cap .and into the chamber .59 :and subsequently through the pipe 55 into the y,space within the keg or barrel above the beer. faucetx54 by simply pressing .in on .the valve rod or push .rod |'6 as before. y

While I have shown and `described several constructionsin Vwhich my .inventonfmay be embodied, it is to be understood that these structures have been selected .merely for -the purpose of illustration or example and various changes vin the size, shape and arrangement -of the parts may be made withoutideparting from the Aspirit of the invention or the scope of the subjoined claims.

. The invention claimed is:

1. A device for dispensing beverages from `a container comprising a tap tube )adapted .for insertion in said container, a valve :casing carried by @said tube and `having a discharge spout adapted to communicate lwith the interior of the tube, a valve controlling communication vbetween Said tube zand said spout, there beingra section 4of tubing 'Ehe beer may be 'dispensedthrough the l` of the valve casing. The operation of this modv KV'ili'cation is the same as that of the device rst =fdesmribed and it will be understood that lthe cas- ,3.0 On one .si-de of this partition the .w40 threadedly interconnected with the casing `52 as above the casing, a piston and valve carried by ,fm

pressed air from said .section of tubing into the 75 interior of the container at a point above the level of the beverage therein whereby said cylinder and said valve may be conjointly employed to dispense beverages from said container.

2. A device for dispensing beverages from a container comprising a tap tube adapted for insertion in said container, a valve casing carried by said tube and having a discharge spout adapted to communicate with the interior of the tube, a valve controlling communication between said tube and said spout, there being a section of tubing above the casing, a piston and valve carried by said section of tubing, a cylinder cooperable with said piston and reciprocable along said section of tubing for compressing air within the section of tubing, and a transfer pipe smaller than and extending through the tap tube and having one end communicating with said section of tubing and having its other end extending transversely through the tap tubing.

3. A device for dispensing a beverage from a container comprising a single tap tube adapted to be inserted in the container, a portion of said tube extending outside of said container, a valve casing having a cylindrical portion in which said portion of said tap tube is fitted and secured whereby said casing is supported in spaced relation to said container, said valve casing extending radially outwardly from said tap tube and being provided at its outer end with a discharge spout, there being a passage in said valve casing for establishing communication between said tap tube and said spout, a valve biased to closed position and operable to prevent flow of uid from the tap tube to the discharge spout, means movable radially inwardly of said tube carried by said casing and cooperable with the valve for opening the same, and means on said casing adapted for conjoint use with said first named means to preclude torsional and bending strains being placed on said casing and tube upon operation of said valve.

4. A device for dispensing a beverage from a container comprising a tapI tube adapted for insertion in said container, valve controlled means cooperable with said tap tube for regulating the discharge of fiuid therefrom, there being a section of tubing above said valve control means, a piston i'lxed to the upper end of said section and having an opening therethrough, a check valve associated with the piston to provide for flow of fluid into said section and preclude exhaust, and a reciprocable cylinder cooperable with said piston and movable back and forth with respect to the section to build up pressure in said section, there being means establishing communication between the interior of said section and the container.

5. A device of the character described comprising a tap tube having a lateral opening through the wall thereof intermediate its ends, a valve casing tted on the tube and having a passage communicating with said opening, said valve casing being also provided with a spout and in communication with said opening, a valve for controlling the flow through said passage, and means cooperable with the tube above the casing for supplying gas under pressure.

6. A device for dispensing beverages from a container comprising a tap tube adapted for insertion in said container, a valve casing positioned outside of and out of contact with said container, vertical and horizontal passages Within said casing, said passages being inter-communicative, a discharge nozzle for said horizontal passage formed integral with said casing, a valve for said nozzle within said horizontal passage, said vertical passage fitting around and secured to said tube to hold said tube and casing in related position, means on the outside of and carried by said casing for supplying gas under pressure, and a transfer pipe carried by and within said casing and tap tube, said pipe transferring gas from said means to the outside of said tube at a point within said container.

'7. A device for dispensing carbonated beverages comprising a tap tube, a valve casing associated with the tap tube having a vertical and transverse passage, a portion at least of said vertical passage accommodating said tap tube, the inner end of said transverse passage communicating with the tap tube, a spout connected with the outer end of the transverse passage, a valve in the transverse passage for controlling iiow therefrom to the spout, means for supplying gas under pressure, a gas transfer pipe smaller than the tap tube and extending therethrough, the lower end of the gas transfer pipe extending transversely through the tap tube, and means coacting with the upper end of the gas transfer pipe to shut oi communication between said gas supply means and said tap tube while providing for communication between said gas supply means and said gas transfer pipe.

OSCAR J. LEINS.

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